Forehead
Forehead
The forehead (/ˈfɔːrhɛd/; from Old English foran "in front", and heafod "head") is an area of the face above the eyebrows and below the hairline. It is one of the prominent features of human anatomy and plays a crucial role in facial expressions.
Anatomy
The forehead constitutes the upper third of the face. It is bordered by the hairline at the top, the eyebrows at the bottom, and the temples on the sides. The skin of the forehead is thicker than the rest of the face and contains fewer sebaceous glands, making it less prone to acne.
Functions
The forehead plays a significant role in human communication and facial expression. It is often involved in expressions of surprise, worry, and concentration. The forehead also plays a role in thermoregulation, as sweat produced on the forehead can help cool the body.
Related Terms
- Glabella: The space between the eyebrows and above the nose.
- Frontal bone: The bone that forms the forehead and the upper part of the orbit.
- Frontalis muscle: The muscle of the forehead, which allows for movements like wrinkling the forehead and raising the eyebrows.
Etymology
The term "forehead" comes from the Old English words foran meaning "in front" and heafod meaning "head". This term has been in use since the late 14th century.
External links
- Medical encyclopedia article on Forehead
- Wikipedia's article - Forehead
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